Torque accessory for support catheter

Abstract

A guidewire control assembly may hold a guidewire stationary while allowing for rotation of a catheter shaft disposed over the guidewire. The guidewire control assembly may include a housing with a passage for receiving the guidewire, a clutch mechanism connected to the housing and actuatable to selectively grip and release the guidewire disposed in the passage, and an interface rotatably connected to the housing. The interface may receive the catheter hub attached to the catheter shaft and may allow for torquing the catheter hub.

What is claimed is: 
     
         1 . A guidewire control device comprising:
 a housing having a passage for receiving a guidewire;   a clutch connected to the housing and actuatable to selectively grip and release the guidewire disposed in the passage; and   an interface rotatably connected to the housing, the interface configured to receive a catheter hub and torque the catheter hub.   
     
     
         2 . The guidewire control device of  claim 1 , wherein the clutch incudes an engagement member configured to grip the guidewire and prevent rotation of the guidewire while the interface rotates. 
     
     
         3 . The guidewire control device of  claim 2 , wherein the engagement member includes first and second opposing pads configured to be moved toward each other and into contact with the guidewire. 
     
     
         4 . The guidewire control device of  claim 3 , wherein the clutch further includes first and second opposing grips attached to the first and second opposing pads, respectively, the first and second opposing grips configured to move between a release configuration and a gripping configuration, wherein when in the release configuration, the first and second opposing grips extend radially outward from an outer surface of the housing, and when in the gripping configuration, the first and second opposing grips are disposed radially inward toward the passage. 
     
     
         5 . The guidewire control device of  claim 4 , wherein the first and second opposing grips are biased in the release configuration. 
     
     
         6 . The guidewire control device of  claim 1 , wherein the interface includes a proximal end defining a lumen for receiving the guidewire, the proximal end having at least one protrusion configured to rotate within at least one channel on an inner surface of the passage of the housing. 
     
     
         7 . The guidewire control device of  claim 6 , wherein the interface includes a distal end defining a cavity having internal threading configured to receive an externally threaded proximal end of the catheter hub. 
     
     
         8 . The guidewire control device of  claim 1 , further comprising an accessory device including an actuator having a lumen configured to receive a catheter, the actuator having a distal end defining an actuatable clamp configured to engage the catheter, the accessory device further including a sleeve configured to actuate the actuatable clamp. 
     
     
         9 . The guidewire control device of  claim 8 , wherein the actuatable clamp includes a plurality of deflectable arms moveable between a release configuration in which the catheter slides through the lumen, and a gripping configuration in which the plurality of deflectable arms engage the catheter and prevent the catheter from moving axially or rotationally. 
     
     
         10 . The guidewire control device of  claim 9 , wherein the sleeve defines a proximal chamber configured to receive the plurality of deflectable arms in the release configuration, a central chamber configured to receive the plurality of deflectable arms in the gripping configuration, and a lumen configured to receive the catheter, wherein when the plurality of deflectable arms of the actuator are moved from the proximal chamber into the central chamber, the plurality of deflectable arms are compressed radially inward into engagement with the catheter. 
     
     
         11 . A guidewire control assembly comprising:
 a guidewire clamping device including:
 a proximal housing having a passage for receiving a guidewire; 
 a clutch connected to the proximal housing and actuatable to selectively grip and release the guidewire disposed in the passage; and 
 a distal housing rotatably connected to the proximal housing, the distal housing configured to receive a catheter hub; 
   a catheter clamping device including a first member having a lumen configured to receive a catheter and a distal end defining an actuatable clamp configured to engage the catheter, the catheter clamping device further including a second member having a cavity configured to receive and actuate the actuatable clamp.   
     
     
         12 . The guidewire control assembly of  claim 11 , wherein the clutch incudes an engagement member configured to grip the guidewire and prevent rotation of the guidewire while the distal housing rotates, the engagement member including first and second opposing pads configured to be moved toward each other and into contact with the guidewire. 
     
     
         13 . The guidewire control assembly of  claim 12 , wherein the clutch further includes first and second opposing grips attached to the first and second opposing pads, respectively, the first and second opposing grips configured to move between a release configuration and a gripping configuration, wherein when in the release configuration, the first and second opposing grips extend radially outward from an outer surface of the proximal housing, and when in the gripping configuration, the first and second opposing grips are disposed radially inward toward the passage. 
     
     
         14 . The guidewire control assembly of  claim 13 , wherein the first and second opposing grips are biased in the release configuration. 
     
     
         15 . The guidewire control assembly of  claim 11 , wherein the distal housing includes a proximal end defining a lumen for receiving the guidewire, the proximal end having at least one protrusion configured to rotate within at least one channel on an inner surface of the passage of the distal housing. 
     
     
         16 . The guidewire control assembly of  claim 15 , wherein the distal housing includes a distal end defining a cavity having internal threading configured to receive an externally threaded proximal end of the catheter hub. 
     
     
         17 . The guidewire control assembly of  claim 11 , wherein the actuatable clamp includes a plurality of deflectable arms moveable between a release configuration in which the catheter slides through the lumen, and a gripping configuration in which the plurality of deflectable arms engage the catheter and prevent the catheter from moving axially or rotationally. 
     
     
         18 . The guidewire control assembly of  claim 17 , wherein the second member defines a lumen having a proximal region configured to receive the plurality of deflectable arms in the release configuration a middle region configured to receive the plurality of deflectable arms in the gripping configuration, and a distal region configured to receive the catheter, wherein when the plurality of deflectable arms of the actuatable clamp are moved from the proximal region into the middle region, the plurality of deflectable arms are compressed radially inward into engagement with the catheter. 
     
     
         19 . A method of torquing a catheter disposed over a guidewire, the method comprising:
 loading a catheter shaft attached to a catheter hub over a guidewire;   loading a guidewire control device onto the guidewire, the guidewire control device including a housing having a passage for receiving the guidewire, a clutch connected to the housing and actuatable between a release configuration in which the guidewire is freely moveable within the passage and a gripping configuration in which the guidewire is prevented from rotational and axial movement relative to the housing, and an interface rotatably connected to the housing, wherein the clutch is in the release configuration;   attaching the catheter hub to the interface;   actuating the clutch to the gripping configuration thereby preventing rotational and axial movement of the guidewire relative to the housing; and   torquing the catheter by rotating the interface.   
     
     
         20 . The method of  claim 19 , wherein before loading the catheter shaft over the guidewire, the method further comprises:
 loading an accessory device onto the catheter shaft, the accessory device including an actuator having a lumen configured to receive the catheter shaft, the actuator having a distal end defining an actuatable clamp having a release configuration in which the catheter shaft is freely moveable within the lumen and a gripping configuration in which the catheter shaft is prevented from rotational and axial movement relative to the accessory device, the accessory device further including a sleeve configured to actuate the actuatable clamp, wherein the actuatable clamp is in the release configuration;   actuating the accessory device by moving the sleeve over the actuatable clamp thereby moving the actuatable clamp into the gripping configuration; and   wherein torquing the catheter includes rotating the interface and the accessory device in the same direction.